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Three-Dimensional Assessment of MRI-Guided Percutaneous Cryotherapy of Liver Metastases

¹ Department of Radiology, Division of Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St., Boston, MA 02115.
² Department of Radiology, University of Massachusetts, 5 Lake Ave., Worcester, MA 01604.

Abstract

OBJECTIVE. We report our initial investigation of the use of a 3D method for assessing percutaneous tumor ablations. We hypothesized that these 3D techniques could be used to assess the technical success of ablations and that 3D metrics would be predictive of treatment response.

CONCLUSION. Three-dimensional assessment of percutaneous tumor ablations provides a quantitative evaluation of the technical success of the procedure. Three-dimensional computer-based techniques can both quantify coverage of a tumor and create a virtual ablation margin for percutaneous procedures, akin to a surgical margin. Although results are preliminary, 3D metrics were useful in predicting treatment response.

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